Sly turns the camera on one of action cinema's most recognizable careers, tracing five decades of work through the words of the man himself.

What is Sly about?

Director Thom Zimny builds this 2023 documentary around candid conversation rather than a chronological highlight reel, letting Sylvester Stallone walk through the choices, setbacks, and creative risks that shaped his run as an actor, writer, and director. The film moves between archival footage and present-day reflection, following Stallone from his early struggles to break into the industry through the writing and defense of his most personal project, and on to the stretch of his career where he took on directing and producing duties as well as acting. Family features throughout, with Frank Stallone and Talia Shire offering perspective from inside that circle, while peers and collaborators including Arnold Schwarzenegger, Quentin Tarantino, Henry Winkler, and director John Herzfeld weigh in on what set his approach apart. Critic Wesley Morris also appears, giving the film a critical voice alongside the personal one. Rather than treating the work as a simple list of credits, Sly frames it as a running argument Stallone has made about persistence — about writing his way out of being overlooked and staying hands-on with material he cared about long after he no longer had to.

About the cast

The documentary leans on interviews rather than dramatization, with Sylvester Stallone as its central voice throughout. Arnold Schwarzenegger and Quentin Tarantino appear as fellow actor and admirer respectively, offering outside perspective on Stallone's place in action cinema, while Frank Stallone and Talia Shire speak from a family vantage point. Henry Winkler and John Herzfeld add industry context, and Wesley Morris contributes critical framing that sits alongside the more personal testimony.

Context & significance

Sly arrives as part of a wave of star-focused documentaries built around unrestricted access and long-form interviews rather than talking-head retrospectives alone. Its documentary and biography billing puts it alongside films that trade plot for reflection, using a single career as a lens on a broader stretch of American film history — from the independent productions of the 1970s through the studio franchises that followed. For viewers who know Stallone only through his best-known roles, the film offers the connective tissue: the choices, rejections, and stubborn insistence on creative control that ran underneath them.

Watching Sly on Ktime

Sly is available to watch on K-Time with a free account login, and the Persian-dubbed and Persian-subtitled versions make it accessible to Farsi-speaking viewers who want the documentary's interviews without relying on English. K-Time's Farsi-first interface means Iranian diaspora audiences can browse, queue, and watch without switching between languages, and the film's blend of archival footage and present-day interviews reads clearly in either language track.